| Message ID | 20181015123112.9379-5-m.szyprowski@samsung.com |
|---|---|
| State | New |
| Headers | show |
| Series | Proper arch timer support for Exynos5433-based TM2(e) boards | expand |
On 2018년 10월 15일 21:31, Marek Szyprowski wrote: > Exynos Multi-Core Timer driver (exynos_mct) must be started before > ARM Architected Timers (arch_timer), because both timers share common > hardware block and turning on MCT is needed to get ARM Architected > Timer working properly. > > Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> > Acked-by: Krzysztof Kozlowski <krzk@kernel.org> > --- > include/linux/cpuhotplug.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h > index caf40ad0bbc6..5d9e4a6ea299 100644 > --- a/include/linux/cpuhotplug.h > +++ b/include/linux/cpuhotplug.h > @@ -115,10 +115,10 @@ enum cpuhp_state { > CPUHP_AP_PERF_ARM_ACPI_STARTING, > CPUHP_AP_PERF_ARM_STARTING, > CPUHP_AP_ARM_L2X0_STARTING, > + CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING, > CPUHP_AP_ARM_ARCH_TIMER_STARTING, > CPUHP_AP_ARM_GLOBAL_TIMER_STARTING, > CPUHP_AP_JCORE_TIMER_STARTING, > - CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING, > CPUHP_AP_ARM_TWD_STARTING, > CPUHP_AP_QCOM_TIMER_STARTING, > CPUHP_AP_ARMADA_TIMER_STARTING, > On Exynos SoC, ARM architecture timer shares the block of Exynos MCT timer. For using arch_timer, Exynos MCT timer should be initialized before arch_timer. I agree about this. Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> -- Best Regards, Chanwoo Choi Samsung Electronics
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index caf40ad0bbc6..5d9e4a6ea299 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -115,10 +115,10 @@ enum cpuhp_state { CPUHP_AP_PERF_ARM_ACPI_STARTING, CPUHP_AP_PERF_ARM_STARTING, CPUHP_AP_ARM_L2X0_STARTING, + CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING, CPUHP_AP_ARM_ARCH_TIMER_STARTING, CPUHP_AP_ARM_GLOBAL_TIMER_STARTING, CPUHP_AP_JCORE_TIMER_STARTING, - CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING, CPUHP_AP_ARM_TWD_STARTING, CPUHP_AP_QCOM_TIMER_STARTING, CPUHP_AP_ARMADA_TIMER_STARTING,